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https://gitlab.com/freepascal.org/fpc/source.git
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1202 lines
42 KiB
ObjectPascal
1202 lines
42 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl
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This unit implements an asmoutput class for Intel syntax with Intel i386+
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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{
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This unit implements an asmoutput class for Intel syntax with Intel i386+
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}
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unit agx86int;
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{$i fpcdefs.inc}
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interface
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uses
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cpubase,constexp,
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aasmbase,aasmtai,aasmdata,aasmcpu,assemble,cgutils;
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type
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Tx86IntelAssembler = class(TExternalAssembler)
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private
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procedure WriteReference(var ref : treference);
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procedure WriteOper(const o:toper;s : topsize; opcode: tasmop;dest : boolean);
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procedure WriteOper_jmp(const o:toper;s : topsize);
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public
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function single2str(d : single) : string; override;
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function double2str(d : double) : string; override;
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function extended2str(e : extended) : string; override;
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function comp2str(d : bestreal) : string;
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procedure WriteTree(p:TAsmList);override;
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procedure WriteAsmList;override;
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Function DoAssemble:boolean;override;
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procedure WriteExternals;
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end;
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implementation
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uses
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SysUtils,math,
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cutils,globtype,globals,systems,cclasses,
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verbose,cscript,cpuinfo,
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itx86int,
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cgbase
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{$ifdef EXTDEBUG}
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,fmodule
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{$endif EXTDEBUG}
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;
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const
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line_length = 70;
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max_tokens : longint = 25;
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(*
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wasm_cpu_name : array[tcputype] of string = (
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{$if defined(x86_64)}
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'IA64', // cpu_none,
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'686', // cpu_athlon64,
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'686', // cpu_core_i,
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'686', // cpu_core_avx,
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'686' // cpu_core_avx2
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{$elseif defined(i386)}
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'IA64', // cpu_none,
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'386', // cpu_386,
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'486', // cpu_486,
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'586', // cpu_Pentium,
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'686', // cpu_Pentium2,
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'686', // cpu_Pentium3,
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'686', // cpu_Pentium4,
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'686', // cpu_PentiumM,
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'686', // cpu_core_i,
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'686', // cpu_core_avx,
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'686' // cpu_core_avx2
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{$elseif defined(i8086)}
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'IA64', // cpu_none
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'8086', // cpu_8086
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'186', // cpu_186
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'286', // cpu_286
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'386', // cpu_386
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'486', // cpu_486
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'586', // cpu_Pentium
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'686', // cpu_Pentium2
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'686', // cpu_Pentium3
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'686', // cpu_Pentium4
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'686' // cpu_PentiumM
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{$endif}
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);
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*)
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secnames : array[TAsmSectiontype] of string[4] = ('','',
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'CODE','DATA','DATA','DATA','BSS','TLS',
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'','','','','','',
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'','','','',
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'',
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'',
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'',
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'',
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'',
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'','','','','','',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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''
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);
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secnamesml64 : array[TAsmSectiontype] of string[7] = ('','',
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'_TEXT','_DATA','_DATA','_DATA','_BSS','_TLS',
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'','','','',
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'idata$2','idata$4','idata$5','idata$6','idata$7','edata',
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'',
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'',
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'',
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'',
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'',
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'','','','','','',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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'',
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''
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);
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function TX86IntelAssembler.single2str(d : single) : string;
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var
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hs : string;
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p : byte;
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begin
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str(d,hs);
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{ nasm expects a lowercase e }
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p:=pos('E',hs);
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if p>0 then
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hs[p]:='e';
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p:=pos('+',hs);
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if p>0 then
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delete(hs,p,1);
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single2str:=lower(hs);
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end;
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function TX86IntelAssembler.double2str(d : double) : string;
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var
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hs : string;
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p : byte;
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begin
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str(d,hs);
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{ nasm expects a lowercase e }
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p:=pos('E',hs);
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if p>0 then
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hs[p]:='e';
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p:=pos('+',hs);
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if p>0 then
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delete(hs,p,1);
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double2str:=lower(hs);
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end;
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function TX86IntelAssembler.extended2str(e : extended) : string;
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var
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hs : string;
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p : byte;
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begin
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str(e,hs);
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{ nasm expects a lowercase e }
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p:=pos('E',hs);
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if p>0 then
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hs[p]:='e';
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p:=pos('+',hs);
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if p>0 then
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delete(hs,p,1);
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extended2str:=lower(hs);
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end;
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function TX86IntelAssembler.comp2str(d : bestreal) : string;
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type
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pdouble = ^double;
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var
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c : comp;
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dd : pdouble;
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begin
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c:=comp(d);
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dd:=pdouble(@c); { this makes a bitwise copy of c into a double }
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comp2str:=double2str(dd^);
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end;
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{ MASM supports aligns up to 8192 }
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function alignstr(b : longint) : string;
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begin
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case b of
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1: result:='BYTE';
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2: result:='WORD';
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4: result:='DWORD';
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0,
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16: result:='PARA';
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256: result:='PAGE';
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else
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result:='ALIGN('+tostr(b)+')';
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end;
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end;
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{****************************************************************************
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tx86IntelAssembler
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****************************************************************************}
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procedure tx86IntelAssembler.WriteReference(var ref : treference);
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var
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first : boolean;
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begin
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with ref do
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begin
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first:=true;
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if segment<>NR_NO then
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writer.AsmWrite(masm_regname(segment)+':[')
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else
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writer.AsmWrite('[');
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if assigned(symbol) then
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begin
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if (asminfo^.id = as_i386_tasm) then
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writer.AsmWrite('dword ptr ');
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writer.AsmWrite(ApplyAsmSymbolRestrictions(symbol.name));
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first:=false;
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end;
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if (base<>NR_NO) then
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begin
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if not(first) then
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writer.AsmWrite('+')
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else
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first:=false;
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{$ifdef x86_64}
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{ ml64 needs [$+foo] instead of [rip+foo] }
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if (base=NR_RIP) and (asminfo^.id=as_x86_64_masm) then
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writer.AsmWrite('$')
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else
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{$endif x86_64}
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writer.AsmWrite(masm_regname(base));
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end;
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if (index<>NR_NO) then
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begin
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if not(first) then
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writer.AsmWrite('+')
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else
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first:=false;
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writer.AsmWrite(masm_regname(index));
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if scalefactor<>0 then
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writer.AsmWrite('*'+tostr(scalefactor));
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end;
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if offset<0 then
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begin
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writer.AsmWrite(tostr(offset));
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first:=false;
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end
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else if (offset>0) then
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begin
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writer.AsmWrite('+'+tostr(offset));
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first:=false;
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end;
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if first then
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writer.AsmWrite('0');
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writer.AsmWrite(']');
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end;
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end;
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procedure tx86IntelAssembler.WriteOper(const o:toper;s : topsize; opcode: tasmop;dest : boolean);
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begin
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case o.typ of
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top_reg :
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writer.AsmWrite(masm_regname(o.reg));
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top_const :
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writer.AsmWrite(tostr(o.val));
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top_ref :
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begin
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if o.ref^.refaddr in [addr_no,addr_pic,addr_pic_no_got] then
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begin
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if ((opcode <> A_LGS) and (opcode <> A_LSS) and
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(opcode <> A_LFS)
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{$ifndef x86_64}
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and (opcode <> A_LDS) and (opcode <> A_LES)
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{$endif x86_64}
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) then
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Begin
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case s of
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S_B : writer.AsmWrite('byte ptr ');
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S_W : writer.AsmWrite('word ptr ');
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S_L : writer.AsmWrite('dword ptr ');
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S_Q : writer.AsmWrite('qword ptr ');
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S_IS : writer.AsmWrite('word ptr ');
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S_IL : writer.AsmWrite('dword ptr ');
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S_IQ : writer.AsmWrite('qword ptr ');
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S_FS : writer.AsmWrite('dword ptr ');
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S_FL : writer.AsmWrite('qword ptr ');
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S_T,
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S_FX : writer.AsmWrite('tbyte ptr ');
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S_BW : if dest then
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writer.AsmWrite('word ptr ')
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else
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writer.AsmWrite('byte ptr ');
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S_BL : if dest then
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writer.AsmWrite('dword ptr ')
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else
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writer.AsmWrite('byte ptr ');
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S_WL : if dest then
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writer.AsmWrite('dword ptr ')
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else
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writer.AsmWrite('word ptr ');
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S_XMM: writer.AsmWrite('xmmword ptr ');
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S_YMM: writer.AsmWrite('ymmword ptr ');
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S_ZMM: writer.AsmWrite('zmmword ptr ');
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{$ifdef x86_64}
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S_BQ : if dest then
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writer.AsmWrite('qword ptr ')
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else
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writer.AsmWrite('byte ptr ');
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S_WQ : if dest then
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writer.AsmWrite('qword ptr ')
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else
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writer.AsmWrite('word ptr ');
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S_LQ : if dest then
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writer.AsmWrite('qword ptr ')
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else
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writer.AsmWrite('dword ptr ');
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{$endif x86_64}
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else
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;
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end;
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end;
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WriteReference(o.ref^);
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end
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else
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begin
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writer.AsmWrite('offset ');
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if assigned(o.ref^.symbol) then
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writer.AsmWrite(ApplyAsmSymbolRestrictions(o.ref^.symbol.name));
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if o.ref^.offset>0 then
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writer.AsmWrite('+'+tostr(o.ref^.offset))
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else
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if o.ref^.offset<0 then
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writer.AsmWrite(tostr(o.ref^.offset))
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else
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if not(assigned(o.ref^.symbol)) then
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writer.AsmWrite('0');
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end;
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end;
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else
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internalerror(2005060510);
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end;
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end;
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procedure tx86IntelAssembler.WriteOper_jmp(const o:toper;s : topsize);
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begin
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case o.typ of
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top_reg :
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writer.AsmWrite(masm_regname(o.reg));
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top_const :
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writer.AsmWrite(tostr(o.val));
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top_ref :
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{ what about lcall or ljmp ??? }
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begin
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if o.ref^.refaddr=addr_no then
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begin
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if (asminfo^.id <> as_i386_tasm) then
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begin
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if s=S_FAR then
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writer.AsmWrite('far ptr ')
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else
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{$ifdef x86_64}
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writer.AsmWrite('qword ptr ');
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{$else x86_64}
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writer.AsmWrite('dword ptr ');
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{$endif x86_64}
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end;
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WriteReference(o.ref^);
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end
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else
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begin
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writer.AsmWrite(ApplyAsmSymbolRestrictions(o.ref^.symbol.name));
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if o.ref^.offset>0 then
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writer.AsmWrite('+'+tostr(o.ref^.offset))
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else
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if o.ref^.offset<0 then
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writer.AsmWrite(tostr(o.ref^.offset));
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end;
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end;
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else
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internalerror(2005060511);
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end;
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end;
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const
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ait_const2str : array[aitconst_128bit..aitconst_64bit_unaligned] of string[20]=(
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#9''#9,#9'DQ'#9,#9'DD'#9,#9'DW'#9,#9'DB'#9,
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#9'FIXMESLEB',#9'FIXEMEULEB',
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#9'DD RVA'#9,#9'DD SECREL32'#9,
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#9'FIXME',#9'FIXME',#9'FIXME',#9'FIXME',
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#9'DW'#9,#9'DD'#9,#9'DQ'#9
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);
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Function PadTabs(const p:string;addch:char):string;
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var
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s : string;
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i : longint;
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begin
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i:=length(p);
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if addch<>#0 then
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begin
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inc(i);
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s:=p+addch;
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end
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else
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s:=p;
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if i<8 then
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PadTabs:=s+#9#9
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else
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PadTabs:=s+#9;
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end;
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|
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procedure tx86IntelAssembler.WriteTree(p:TAsmList);
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var
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s,
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prefix,
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suffix : string;
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hp,nhp : tai;
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cpu: tcputype;
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counter,
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lines, tokens,
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InlineLevel : longint;
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i,j,l : longint;
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consttype : taiconst_type;
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do_line,DoNotSplitLine,
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quoted : boolean;
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fixed_opcode: TAsmOp;
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begin
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if not assigned(p) then
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exit;
|
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{ lineinfo is only needed for al_procedures (PFV) }
|
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do_line:=((cs_asm_source in current_settings.globalswitches) or
|
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(cs_lineinfo in current_settings.moduleswitches))
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and (p=current_asmdata.asmlists[al_procedures]);
|
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InlineLevel:=0;
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DoNotSplitLine:=false;
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hp:=tai(p.first);
|
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while assigned(hp) do
|
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begin
|
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prefetch(pointer(hp.next)^);
|
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if not(hp.typ in SkipLineInfo) then
|
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begin
|
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current_filepos:=tailineinfo(hp).fileinfo;
|
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{ no line info for inlined code }
|
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if do_line and (inlinelevel=0) and not DoNotSplitLine then
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WriteSourceLine(hp as tailineinfo);
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end;
|
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DoNotSplitLine:=false;
|
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|
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case hp.typ of
|
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ait_section :
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begin
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if tai_section(hp).sectype<>sec_none then
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begin
|
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if asminfo^.id=as_x86_64_masm then
|
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begin
|
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if LasTSecType<>sec_none then
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writer.AsmWriteLn(secnamesml64[LasTSecType]+#9#9'ENDS');
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writer.AsmLn;
|
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writer.AsmWriteLn(secnamesml64[tai_section(hp).sectype]+#9+'SEGMENT')
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end
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else
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begin
|
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if LasTSecType<>sec_none then
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writer.AsmWriteLn('_'+secnames[LasTSecType]+#9#9'ENDS');
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writer.AsmLn;
|
|
if (asminfo^.id=as_i386_wasm) then
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s:='DWORD'
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else
|
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s:=alignstr(tai_section(hp).secalign);
|
|
writer.AsmWriteLn('_'+secnames[tai_section(hp).sectype]+#9#9+
|
|
'SEGMENT'#9+s+' PUBLIC USE32 '''+
|
|
secnames[tai_section(hp).sectype]+'''');
|
|
end;
|
|
end;
|
|
LasTSecType:=tai_section(hp).sectype;
|
|
end;
|
|
ait_align :
|
|
begin
|
|
{ CAUSES PROBLEMS WITH THE SEGMENT DEFINITION }
|
|
{ SEGMENT DEFINITION SHOULD MATCH TYPE OF ALIGN }
|
|
{ HERE UNDER TASM! }
|
|
if tai_align_abstract(hp).aligntype>1 then
|
|
writer.AsmWriteLn(#9'ALIGN '+tostr(tai_align_abstract(hp).aligntype));
|
|
end;
|
|
ait_datablock :
|
|
begin
|
|
if tai_datablock(hp).is_global then
|
|
writer.AsmWriteLn(#9'PUBLIC'#9+ApplyAsmSymbolRestrictions(tai_datablock(hp).sym.name));
|
|
writer.AsmWriteLn(PadTabs(ApplyAsmSymbolRestrictions(tai_datablock(hp).sym.name),#0)+'DB'#9+tostr(tai_datablock(hp).size)+' DUP(?)');
|
|
end;
|
|
ait_const:
|
|
begin
|
|
consttype:=tai_const(hp).consttype;
|
|
case consttype of
|
|
aitconst_uleb128bit,
|
|
aitconst_sleb128bit,
|
|
aitconst_128bit,
|
|
aitconst_64bit,
|
|
aitconst_32bit,
|
|
aitconst_16bit,
|
|
aitconst_8bit,
|
|
aitconst_16bit_unaligned,
|
|
aitconst_32bit_unaligned,
|
|
aitconst_64bit_unaligned,
|
|
aitconst_rva_symbol,
|
|
aitconst_secrel32_symbol :
|
|
begin
|
|
writer.AsmWrite(ait_const2str[consttype]);
|
|
l:=0;
|
|
tokens:=1;
|
|
repeat
|
|
if assigned(tai_const(hp).sym) then
|
|
begin
|
|
if assigned(tai_const(hp).endsym) then
|
|
s:=ApplyAsmSymbolRestrictions(tai_const(hp).endsym.name)+'-'+ApplyAsmSymbolRestrictions(tai_const(hp).sym.name)
|
|
else
|
|
s:=ApplyAsmSymbolRestrictions(tai_const(hp).sym.name);
|
|
if tai_const(hp).value<>0 then
|
|
s:=s+tostr_with_plus(tai_const(hp).value);
|
|
end
|
|
else
|
|
s:=tostr(tai_const(hp).value);
|
|
writer.AsmWrite(s);
|
|
inc(l,length(s));
|
|
inc(tokens);
|
|
if (l>line_length) or
|
|
(tokens>max_tokens) or
|
|
(hp.next=nil) or
|
|
(tai(hp.next).typ<>ait_const) or
|
|
(tai_const(hp.next).consttype<>consttype) then
|
|
break;
|
|
hp:=tai(hp.next);
|
|
writer.AsmWrite(',');
|
|
until false;
|
|
{ Substract section start for secrel32 type }
|
|
if consttype=aitconst_secrel32_symbol then
|
|
writer.AsmWrite(' - $$');
|
|
writer.AsmLn;
|
|
end;
|
|
else
|
|
internalerror(200704253);
|
|
end;
|
|
end;
|
|
|
|
ait_realconst:
|
|
begin
|
|
case tai_realconst(hp).realtyp of
|
|
aitrealconst_s32bit:
|
|
begin
|
|
if (asminfo^.id = as_i386_wasm) and (IsInfinite(tai_realconst(hp).value.s32val)) then
|
|
begin
|
|
{ Watcom Wasm does not handle Infinity }
|
|
if Sign(tai_realconst(hp).value.s32val)=PositiveValue then
|
|
writer.AsmWriteln(#9#9'DB'#9'0,0,80h,7Fh')
|
|
else
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,80h,FFh');
|
|
end
|
|
else if (asminfo^.id = as_i386_wasm) and (IsNan(tai_realconst(hp).value.s32val)) then
|
|
writer.AsmWriteln(#9#9'DB'#9'1,0,80h,7Fh')
|
|
else
|
|
writer.AsmWriteLn(#9#9'DD'#9+single2str(tai_realconst(hp).value.s32val));
|
|
end;
|
|
aitrealconst_s64bit:
|
|
begin
|
|
if (asminfo^.id = as_i386_wasm) and (IsInfinite(tai_realconst(hp).value.s64val)) then
|
|
begin
|
|
{ Watcom Wasm does not handle Infinity }
|
|
if Sign(tai_realconst(hp).value.s64val)=PositiveValue then
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,0,7FF0h')
|
|
else
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,0,FFF0h');
|
|
end
|
|
else if (asminfo^.id = as_i386_wasm) and (IsNan(tai_realconst(hp).value.s64val)) then
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,0,0,7FF8h')
|
|
else
|
|
writer.AsmWriteLn(#9#9'DQ'#9+double2str(tai_realconst(hp).value.s64val));
|
|
end;
|
|
aitrealconst_s80bit:
|
|
if (asminfo^.id = as_i386_wasm) and (IsInfinite(tai_realconst(hp).value.s80val)) then
|
|
begin
|
|
{ Watcom Wasm does not handle Infinity }
|
|
if Sign(tai_realconst(hp).value.s80val)=PositiveValue then
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,0,8000h,7FFFh')
|
|
else
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,0,8000h,FFFFh');
|
|
end
|
|
else if (asminfo^.id = as_i386_wasm) and (IsNan(tai_realconst(hp).value.s80val)) then
|
|
writer.AsmWriteln(#9#9'DW'#9'0,0,0,0xC000,0x7FFF')
|
|
else
|
|
writer.AsmWriteLn(#9#9'DT'#9+extended2str(tai_realconst(hp).value.s80val));
|
|
aitrealconst_s64comp:
|
|
writer.AsmWriteLn(#9#9'DQ'#9+extended2str(tai_realconst(hp).value.s64compval));
|
|
else
|
|
internalerror(2014050606);
|
|
end;
|
|
end;
|
|
ait_string :
|
|
begin
|
|
counter := 0;
|
|
lines := tai_string(hp).len div line_length;
|
|
{ separate lines in different parts }
|
|
if tai_string(hp).len > 0 then
|
|
Begin
|
|
for j := 0 to lines-1 do
|
|
begin
|
|
writer.AsmWrite(#9#9'DB'#9);
|
|
quoted:=false;
|
|
for i:=counter to counter+line_length-1 do
|
|
begin
|
|
{ it is an ascii character. }
|
|
if (ord(tai_string(hp).str[i])>31) and
|
|
(ord(tai_string(hp).str[i])<128) and
|
|
(tai_string(hp).str[i]<>'"') then
|
|
begin
|
|
if not(quoted) then
|
|
begin
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
writer.AsmWrite('"');
|
|
end;
|
|
writer.AsmWrite(tai_string(hp).str[i]);
|
|
quoted:=true;
|
|
end { if > 31 and < 128 and ord('"') }
|
|
else
|
|
begin
|
|
if quoted then
|
|
writer.AsmWrite('"');
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
quoted:=false;
|
|
writer.AsmWrite(tostr(ord(tai_string(hp).str[i])));
|
|
end;
|
|
end; { end for i:=0 to... }
|
|
if quoted then writer.AsmWrite('"');
|
|
writer.AsmWrite(target_info.newline);
|
|
counter := counter+line_length;
|
|
end; { end for j:=0 ... }
|
|
{ do last line of lines }
|
|
if counter<tai_string(hp).len then
|
|
writer.AsmWrite(#9#9'DB'#9);
|
|
quoted:=false;
|
|
for i:=counter to tai_string(hp).len-1 do
|
|
begin
|
|
{ it is an ascii character. }
|
|
if (ord(tai_string(hp).str[i])>31) and
|
|
(ord(tai_string(hp).str[i])<128) and
|
|
(tai_string(hp).str[i]<>'"') then
|
|
begin
|
|
if not(quoted) then
|
|
begin
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
writer.AsmWrite('"');
|
|
end;
|
|
writer.AsmWrite(tai_string(hp).str[i]);
|
|
quoted:=true;
|
|
end { if > 31 and < 128 and " }
|
|
else
|
|
begin
|
|
if quoted then
|
|
writer.AsmWrite('"');
|
|
if i>counter then
|
|
writer.AsmWrite(',');
|
|
quoted:=false;
|
|
writer.AsmWrite(tostr(ord(tai_string(hp).str[i])));
|
|
end;
|
|
end; { end for i:=0 to... }
|
|
if quoted then
|
|
writer.AsmWrite('"');
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
ait_label :
|
|
begin
|
|
if tai_label(hp).labsym.is_used then
|
|
begin
|
|
writer.AsmWrite(ApplyAsmSymbolRestrictions(tai_label(hp).labsym.name));
|
|
if not assigned(hp.next) or not(tai(hp.next).typ in
|
|
[ait_const,ait_realconst,ait_string]) then
|
|
writer.AsmWriteLn(':')
|
|
else
|
|
DoNotSplitLine:=true;
|
|
end;
|
|
end;
|
|
ait_symbol :
|
|
begin
|
|
if tai_symbol(hp).has_value then
|
|
internalerror(2009090802);
|
|
{ wasm is case insensitive, we need to use only uppercase version
|
|
if both a lowercase and an uppercase version are provided }
|
|
if (asminfo^.id = as_i386_wasm) then
|
|
begin
|
|
nhp:=tai(hp.next);
|
|
while assigned(nhp) and (nhp.typ in [ait_function_name,ait_force_line]) do
|
|
nhp:=tai(nhp.next);
|
|
if assigned(nhp) and (tai(nhp).typ=ait_symbol) and
|
|
(lower(tai_symbol(nhp).sym.name)=tai_symbol(hp).sym.name) then
|
|
begin
|
|
writer.AsmWriteln(asminfo^.comment+' '+tai_symbol(hp).sym.name+' removed');
|
|
hp:=tai(nhp);
|
|
end;
|
|
end;
|
|
if tai_symbol(hp).is_global then
|
|
writer.AsmWriteLn(#9'PUBLIC'#9+ApplyAsmSymbolRestrictions(tai_symbol(hp).sym.name));
|
|
writer.AsmWrite(ApplyAsmSymbolRestrictions(tai_symbol(hp).sym.name));
|
|
if not assigned(hp.next) or not(tai(hp.next).typ in
|
|
[ait_const,ait_realconst,ait_string]) then
|
|
writer.AsmWriteLn(':');
|
|
end;
|
|
ait_symbol_end :
|
|
begin
|
|
end;
|
|
ait_instruction :
|
|
begin
|
|
fixed_opcode:=taicpu(hp).FixNonCommutativeOpcodes;
|
|
taicpu(hp).SetOperandOrder(op_intel);
|
|
{ Reset }
|
|
suffix:='';
|
|
prefix:= '';
|
|
{ We need to explicitely set
|
|
word prefix to get selectors
|
|
to be pushed in 2 bytes PM }
|
|
if (taicpu(hp).opsize=S_W) and
|
|
(
|
|
(
|
|
(fixed_opcode=A_PUSH) or
|
|
(fixed_opcode=A_POP)
|
|
) and
|
|
(taicpu(hp).oper[0]^.typ=top_reg) and
|
|
is_segment_reg(taicpu(hp).oper[0]^.reg)
|
|
) then
|
|
writer.AsmWriteln(#9#9'DB'#9'066h');
|
|
|
|
{ added prefix instructions, must be on same line as opcode }
|
|
if (taicpu(hp).ops = 0) and
|
|
((fixed_opcode = A_REP) or
|
|
(fixed_opcode = A_LOCK) or
|
|
(fixed_opcode = A_REPE) or
|
|
(fixed_opcode = A_REPNZ) or
|
|
(fixed_opcode = A_REPZ) or
|
|
(fixed_opcode = A_REPNE)) then
|
|
Begin
|
|
prefix:=std_op2str[fixed_opcode]+#9;
|
|
{ there can be a stab inbetween when the opcode was on
|
|
a different line in the source code }
|
|
repeat
|
|
hp:=tai(hp.next);
|
|
until (hp=nil) or (hp.typ=ait_instruction);
|
|
|
|
{ next instruction ... }
|
|
fixed_opcode:=taicpu(hp).FixNonCommutativeOpcodes;
|
|
taicpu(hp).SetOperandOrder(op_intel);
|
|
|
|
{ this is theorically impossible... }
|
|
if hp=nil then
|
|
begin
|
|
writer.AsmWriteLn(#9#9+prefix);
|
|
break;
|
|
end;
|
|
{ nasm prefers prefix on a line alone
|
|
writer.AsmWriteln(#9#9+prefix); but not masm PM
|
|
prefix:=''; }
|
|
if asminfo^.id in [as_i386_nasmcoff,as_i386_nasmwin32,as_i386_nasmwdosx,
|
|
as_i386_nasmelf,as_i386_nasmobj,as_i386_nasmbeos,as_i386_nasmhaiku] then
|
|
begin
|
|
writer.AsmWriteln(prefix);
|
|
prefix:='';
|
|
end;
|
|
end
|
|
else
|
|
prefix:= '';
|
|
if (asminfo^.id = as_i386_wasm) and
|
|
(taicpu(hp).opsize=S_W) and
|
|
(fixed_opcode=A_PUSH) and
|
|
(taicpu(hp).oper[0]^.typ=top_const) then
|
|
begin
|
|
writer.AsmWriteln(#9#9'DB 66h,68h ; pushw imm16');
|
|
writer.AsmWrite(#9#9'DW');
|
|
end
|
|
else if (asminfo^.id=as_x86_64_masm) and
|
|
(fixed_opcode=A_MOVQ) then
|
|
writer.AsmWrite(#9#9'mov')
|
|
{$ifdef I386}
|
|
else if (asminfo^.id = as_i386_wasm) and ((fixed_opcode=A_RETD)
|
|
or (fixed_opcode=A_RETND) or (fixed_opcode=A_RETFD)) then
|
|
begin
|
|
{ no 'd' suffix for Watcom assembler }
|
|
case fixed_opcode of
|
|
A_RETD:
|
|
writer.AsmWrite(#9#9'ret');
|
|
A_RETND:
|
|
writer.AsmWrite(#9#9'retn');
|
|
A_RETFD:
|
|
writer.AsmWrite(#9#9'retf');
|
|
else
|
|
internalerror(2019050907);
|
|
end
|
|
end
|
|
{$endif I386}
|
|
else
|
|
writer.AsmWrite(#9#9+prefix+std_op2str[fixed_opcode]+cond2str[taicpu(hp).condition]+suffix);
|
|
if taicpu(hp).ops<>0 then
|
|
begin
|
|
if is_calljmp(fixed_opcode) then
|
|
begin
|
|
writer.AsmWrite(#9);
|
|
WriteOper_jmp(taicpu(hp).oper[0]^,taicpu(hp).opsize);
|
|
end
|
|
else
|
|
begin
|
|
for i:=0to taicpu(hp).ops-1 do
|
|
begin
|
|
if i=0 then
|
|
writer.AsmWrite(#9)
|
|
else
|
|
writer.AsmWrite(',');
|
|
WriteOper(taicpu(hp).oper[i]^,taicpu(hp).opsize,fixed_opcode,(i=2));
|
|
end;
|
|
end;
|
|
end;
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
ait_stab,
|
|
ait_force_line,
|
|
ait_function_name : ;
|
|
|
|
ait_cutobject :
|
|
begin
|
|
{ only reset buffer if nothing has changed }
|
|
if not writer.ClearIfEmpty then
|
|
begin
|
|
if LasTSecType<>sec_none then
|
|
writer.AsmWriteLn('_'+secnames[LasTSecType]+#9#9'ENDS');
|
|
writer.AsmLn;
|
|
writer.AsmWriteLn(#9'END');
|
|
writer.AsmClose;
|
|
DoAssemble;
|
|
writer.AsmCreate(tai_cutobject(hp).place);
|
|
end;
|
|
{ avoid empty files }
|
|
while assigned(hp.next) and (tai(hp.next).typ in [ait_cutobject,ait_section,ait_comment]) do
|
|
begin
|
|
if tai(hp.next).typ=ait_section then
|
|
lasTSecType:=tai_section(hp.next).sectype;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
if (asminfo^.id = as_i386_wasm) then
|
|
begin
|
|
writer.AsmWriteLn(#9'.686p');
|
|
writer.AsmWriteLn(#9'.xmm');
|
|
end
|
|
else
|
|
writer.AsmWriteLn(#9'.386p');
|
|
{$ifdef i8086}
|
|
writer.AsmWriteLn('DGROUP'#9'GROUP'#9'_BSS,_DATA');
|
|
writer.AsmWriteLn(#9'ASSUME'#9'CS:_CODE,ES:DGROUP,DS:DGROUP,SS:DGROUP');
|
|
{$endif i8086}
|
|
{ I was told that this isn't necesarry because }
|
|
{ the labels generated by FPC are unique (FK) }
|
|
{ writer.AsmWriteLn(#9'LOCALS '+asminfo^.labelprefix); }
|
|
{ TODO: PARA is incorrect, must use actual section align }
|
|
if lasTSectype<>sec_none then
|
|
writer.AsmWriteLn('_'+secnames[lasTSectype]+#9#9+
|
|
'SEGMENT'#9'PARA PUBLIC USE32 '''+
|
|
secnames[lasTSectype]+'''');
|
|
writer.MarkEmpty;
|
|
end;
|
|
ait_marker :
|
|
begin
|
|
if tai_marker(hp).kind=mark_NoLineInfoStart then
|
|
inc(InlineLevel)
|
|
else if tai_marker(hp).kind=mark_NoLineInfoEnd then
|
|
dec(InlineLevel);
|
|
end;
|
|
|
|
ait_directive :
|
|
begin
|
|
case tai_directive(hp).directive of
|
|
asd_nasm_import :
|
|
begin
|
|
writer.AsmWrite('import ');
|
|
writer.AsmWrite(tai_directive(hp).name);
|
|
writer.AsmLn;
|
|
end;
|
|
asd_extern :
|
|
begin
|
|
writer.AsmWrite('EXTRN ');
|
|
writer.AsmWrite(tai_directive(hp).name);
|
|
writer.AsmLn;
|
|
end;
|
|
asd_cpu :
|
|
begin
|
|
if (asminfo^.id = as_i386_wasm) then
|
|
begin
|
|
{writer.AsmWrite('.');}
|
|
for cpu:=low(tcputype) to high(tcputype) do
|
|
begin
|
|
if tai_directive(hp).name=CPUTypeStr[CPU] then
|
|
begin
|
|
{ writer.AsmWriteLn(wasm_cpu_name[cpu]); }
|
|
break;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ TODO: implement this properly for TASM/MASM/WASM (.686p, etc.) }
|
|
writer.AsmWrite(asminfo^.comment+' CPU ');
|
|
writer.AsmWrite(tai_directive(hp).name);
|
|
writer.AsmLn;
|
|
end;
|
|
end
|
|
else
|
|
internalerror(200509192);
|
|
end;
|
|
end;
|
|
ait_seh_directive :
|
|
{ Ignore for now };
|
|
else
|
|
if not WriteComments(hp) then
|
|
internalerror(2020100802);
|
|
end;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tx86intelassembler.WriteExternals;
|
|
var
|
|
sym : TAsmSymbol;
|
|
i : longint;
|
|
begin
|
|
for i:=0 to current_asmdata.AsmSymbolDict.Count-1 do
|
|
begin
|
|
sym:=TAsmSymbol(current_asmdata.AsmSymbolDict[i]);
|
|
if sym.bind in [AB_EXTERNAL,AB_EXTERNAL_INDIRECT] then
|
|
begin
|
|
case asminfo^.id of
|
|
as_i386_masm,
|
|
as_i386_wasm :
|
|
writer.AsmWriteln(#9'EXTRN'#9+ApplyAsmSymbolRestrictions(sym.name)+': NEAR');
|
|
as_x86_64_masm :
|
|
writer.AsmWriteln(#9'EXTRN'#9+ApplyAsmSymbolRestrictions(sym.name)+': PROC');
|
|
else
|
|
writer.AsmWriteln(#9'EXTRN'#9+ApplyAsmSymbolRestrictions(sym.name));
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
function tx86intelassembler.DoAssemble : boolean;
|
|
var
|
|
masmobjfn : string;
|
|
begin
|
|
DoAssemble:=Inherited DoAssemble;
|
|
{ masm does not seem to recognize specific extensions and uses .obj allways PM }
|
|
if (asminfo^.id in [as_i386_masm,as_i386_wasm]) then
|
|
begin
|
|
masmobjfn:=ChangeFileExt(objfilename,'.obj');
|
|
if not(cs_asm_extern in current_settings.globalswitches) then
|
|
begin
|
|
if Not FileExists(objfilename) and
|
|
FileExists(masmobjfn) then
|
|
RenameFile(masmobjfn,objfilename);
|
|
end
|
|
else
|
|
AsmRes.AddAsmCommand('mv',masmobjfn+' '+objfilename,objfilename);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tx86IntelAssembler.WriteAsmList;
|
|
var
|
|
hal : tasmlisttype;
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
if current_module.mainsource<>'' then
|
|
comment(v_info,'Start writing intel-styled assembler output for '+current_module.mainsource);
|
|
{$endif}
|
|
if asminfo^.id<>as_x86_64_masm then
|
|
begin
|
|
if (asminfo^.id = as_i386_wasm) then
|
|
begin
|
|
writer.AsmWriteLn(#9'.686p');
|
|
writer.AsmWriteLn(#9'.xmm');
|
|
end
|
|
else
|
|
writer.AsmWriteLn(#9'.386p');
|
|
{ masm 6.11 does not seem to like LOCALS PM }
|
|
if (asminfo^.id = as_i386_tasm) then
|
|
begin
|
|
writer.AsmWriteLn(#9'LOCALS '+asminfo^.labelprefix);
|
|
end;
|
|
{$ifdef i8086}
|
|
writer.AsmWriteLn('DGROUP'#9'GROUP'#9'_BSS,_DATA');
|
|
writer.AsmWriteLn(#9'ASSUME'#9'CS:_CODE,ES:DGROUP,DS:DGROUP,SS:DGROUP');
|
|
{$endif i8086}
|
|
writer.AsmLn;
|
|
end;
|
|
|
|
WriteExternals;
|
|
|
|
for hal:=low(TasmlistType) to high(TasmlistType) do
|
|
begin
|
|
writer.AsmWriteLn(asminfo^.comment+'Begin asmlist '+AsmListTypeStr[hal]);
|
|
writetree(current_asmdata.asmlists[hal]);
|
|
writer.AsmWriteLn(asminfo^.comment+'End asmlist '+AsmListTypeStr[hal]);
|
|
end;
|
|
|
|
{ better do this at end of WriteTree, but then there comes a trouble with
|
|
al_const which does not have leading ait_section and thus goes out of segment }
|
|
|
|
if LastSecType <> sec_none then
|
|
begin
|
|
if asminfo^.id=as_x86_64_masm then
|
|
writer.AsmWriteLn(secnamesml64[LasTSecType]+#9#9'ENDS')
|
|
else
|
|
writer.AsmWriteLn('_'+secnames[LasTSecType]+#9#9'ENDS');
|
|
end;
|
|
LastSecType := sec_none;
|
|
|
|
writer.AsmWriteLn(#9'END');
|
|
writer.AsmLn;
|
|
|
|
{$ifdef EXTDEBUG}
|
|
if current_module.mainsource<>'' then
|
|
comment(v_info,'Done writing intel-styled assembler output for '+current_module.mainsource);
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
Initialize
|
|
*****************************************************************************}
|
|
|
|
const
|
|
{$ifdef i386}
|
|
as_i386_tasm_info : tasminfo =
|
|
(
|
|
id : as_i386_tasm;
|
|
idtxt : 'TASM';
|
|
asmbin : 'tasm';
|
|
asmcmd : '/m2 /ml $EXTRAOPT $ASM $OBJ';
|
|
supported_targets : [system_i386_GO32V2,system_i386_Win32,system_i386_wdosx,system_i386_watcom,system_i386_wince];
|
|
flags : [af_needar,af_labelprefix_only_inside_procedure];
|
|
labelprefix : '@@';
|
|
labelmaxlen : -1;
|
|
comment : '; ';
|
|
dollarsign: '$';
|
|
);
|
|
|
|
as_i386_masm_info : tasminfo =
|
|
(
|
|
id : as_i386_masm;
|
|
idtxt : 'MASM';
|
|
asmbin : 'masm';
|
|
asmcmd : '/c /Cp $EXTRAOPT $ASM /Fo$OBJ';
|
|
supported_targets : [system_i386_GO32V2,system_i386_Win32,system_i386_wdosx,system_i386_watcom,system_i386_wince];
|
|
flags : [af_needar];
|
|
labelprefix : '@@';
|
|
labelmaxlen : -1;
|
|
comment : '; ';
|
|
dollarsign: '$';
|
|
);
|
|
|
|
as_i386_wasm_info : tasminfo =
|
|
(
|
|
id : as_i386_wasm;
|
|
idtxt : 'WASM';
|
|
asmbin : 'wasm';
|
|
asmcmd : '$ASM $EXTRAOPT -6s -fp6 -ms -zq -Fo=$OBJ';
|
|
supported_targets : [system_i386_watcom];
|
|
flags : [af_needar];
|
|
labelprefix : '@@';
|
|
labelmaxlen : 247;
|
|
comment : '; ';
|
|
dollarsign: '$';
|
|
);
|
|
{$endif i386}
|
|
{$ifdef x86_64}
|
|
as_x86_64_masm_info : tasminfo =
|
|
(
|
|
id : as_x86_64_masm;
|
|
idtxt : 'MASM';
|
|
asmbin : 'ml64';
|
|
asmcmd : '/c /Cp $EXTRAOPT $ASM /Fo$OBJ';
|
|
supported_targets : [system_x86_64_win64];
|
|
flags : [af_needar];
|
|
labelprefix : '@@';
|
|
labelmaxlen : -1;
|
|
comment : '; ';
|
|
dollarsign: '$';
|
|
);
|
|
{$endif x86_64}
|
|
|
|
initialization
|
|
{$ifdef x86_64}
|
|
RegisterAssembler(as_x86_64_masm_info,tx86IntelAssembler);
|
|
{$endif x86_64}
|
|
{$ifdef i386}
|
|
RegisterAssembler(as_i386_tasm_info,tx86IntelAssembler);
|
|
RegisterAssembler(as_i386_masm_info,tx86IntelAssembler);
|
|
RegisterAssembler(as_i386_wasm_info,tx86IntelAssembler);
|
|
{$endif i386}
|
|
end.
|